Abstract
The sweetclover root disk bioassay was used to test the activity of 21 sugars and related compounds as feeding stimulants for the sweetclover weevil Sitona cylindricollis Fåhraeus. Of the compounds tested, sucrose was the most effective feeding stimulant. Compounds with moderate stimulant activity were fructose, glucose, galactose, mannose, myo-inositol, and maltose. Slightly active feeding stimulants included ribose, xylose, sorbose, and sedoheptulose. Arabinose, arabitol, mannitol, xylitol, cellobiose, raffinose, soluble starch, ascorbic acid, glucuronic acid, and glucosamine failed to exhibit feeding stimulant activity in these tests. Four compounds (arabinose, ascorhic acid, glucuronic acid, and mannitol) were tested for feeding deterrent activity, and all displayed such activity. Although the structural requirements for feeding stimulant or deterrent activity were not established, it was clear that small differences in chemical structure could cause large differences in feeding response.
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Claims 12
Claim · model-written summary
Sucrose was the most effective feeding stimulant for sweetclover weevil.
Verbatim
e0“Of the compounds tested, sucrose was the most effective feeding stimulant.”
t0“Feeding Response of the Sweetclover Weevil to Various Sugars and Related Compounds12”
Claim · model-written summary
Fructose, glucose, and galactose had moderate feeding stimulant activity.
Verbatim
e0“Compounds with moderate stimulant activity were fructose, glucose, galactose, mannose, myo-inositol, and maltose.”
t0“Feeding Response of the Sweetclover Weevil to Various Sugars and Related Compounds12”
Claim · model-written summary
Mannose, myo-inositol, and maltose had moderate feeding stimulant activity.
Verbatim
e0“Compounds with moderate stimulant activity were fructose, glucose, galactose, mannose, myo-inositol, and maltose.”
t0“Feeding Response of the Sweetclover Weevil to Various Sugars and Related Compounds12”
Claim · model-written summary
Ribose, xylose, and sorbose were slightly active feeding stimulants.
Verbatim
e0“Slightly active feeding stimulants included ribose, xylose, sorbose, and sedoheptulose.”
t0“Feeding Response of the Sweetclover Weevil to Various Sugars and Related Compounds12”
Claim · model-written summary
Sedoheptulose was a slightly active feeding stimulant.
Verbatim
e0“Slightly active feeding stimulants included ribose, xylose, sorbose, and sedoheptulose.”
t0“Feeding Response of the Sweetclover Weevil to Various Sugars and Related Compounds12”
Claim · model-written summary
Arabinose, arabitol, and mannitol did not stimulate feeding.
Verbatim
e0“Arabinose, arabitol, mannitol, xylitol, cellobiose, raffinose, soluble starch, ascorbic acid, glucuronic acid, and glucosamine failed to exhibit feeding stimulant activity in these tests.”
t0“Feeding Response of the Sweetclover Weevil to Various Sugars and Related Compounds12”
Claim · model-written summary
Xylitol, cellobiose, and raffinose did not stimulate feeding.
Verbatim
e0“Arabinose, arabitol, mannitol, xylitol, cellobiose, raffinose, soluble starch, ascorbic acid, glucuronic acid, and glucosamine failed to exhibit feeding stimulant activity in these tests.”
t0“Feeding Response of the Sweetclover Weevil to Various Sugars and Related Compounds12”
Claim · model-written summary
Soluble starch, ascorbic acid, and glucuronic acid did not stimulate feeding.
Verbatim
e0“Arabinose, arabitol, mannitol, xylitol, cellobiose, raffinose, soluble starch, ascorbic acid, glucuronic acid, and glucosamine failed to exhibit feeding stimulant activity in these tests.”
t0“Feeding Response of the Sweetclover Weevil to Various Sugars and Related Compounds12”
Claim · model-written summary
Glucosamine did not stimulate feeding.
Verbatim
e0“Arabinose, arabitol, mannitol, xylitol, cellobiose, raffinose, soluble starch, ascorbic acid, glucuronic acid, and glucosamine failed to exhibit feeding stimulant activity in these tests.”
t0“Feeding Response of the Sweetclover Weevil to Various Sugars and Related Compounds12”
Claim · model-written summary
Arabinose, ascorhic acid, and glucuronic acid deterred feeding.
Verbatim
e0“Four compounds (arabinose, ascorhic acid, glucuronic acid, and mannitol) were tested for feeding deterrent activity, and all displayed such activity.”
t0“Feeding Response of the Sweetclover Weevil to Various Sugars and Related Compounds12”
Claim · model-written summary
Mannitol deterred feeding.
Verbatim
e0“Four compounds (arabinose, ascorhic acid, glucuronic acid, and mannitol) were tested for feeding deterrent activity, and all displayed such activity.”
t0“Feeding Response of the Sweetclover Weevil to Various Sugars and Related Compounds12”
Claim · model-written summary
Small differences in chemical structure could cause large differences in feeding response.
Verbatim
e0“small differences in chemical structure could cause large differences in feeding response”
t0“Feeding Response of the Sweetclover Weevil to Various Sugars and Related Compounds12”